Abstract: An exemplary renewable-energy system including a back end system coupled to an isolated DC power source and a generator powered by a renewable energy source and including first circuitry configured to convert first AC power from the generator to DC power and to provide the DC power to a DC power bus, the first circuitry further configured to initiate operation using power from the isolated DC power source. The example system further includes a front end system comprising an inverter coupled to an isolated DC power source generator. The inverter includes a ground isolation monitor interrupter (IMI) circuit coupled to the DC power bus and configured to receive the DC power and convert the DC power to second AC power for provision to a power grid. The isolated power source generator ground-isolates third AC power of the power grid for conversion to DC power for the isolated DC power source.

Abstract: Provided herein is a method for detecting the presence of clade variants in the COVID-19 virus in a human sample and/or an environmental sample. Samples are processed to obtain total RNA. The RNA is used as a template in a combined reverse transcription and amplification reaction to obtain fluorescent COVID-19 virus amplicons. These amplicons are hybridized on a microarray with nucleic acid probes having sequences that discriminate among the various clade variants. The microarray is imaged to detect the clade variant. Also provided is a method of distinguishing each clade variant from others by generating an intensity distribution profile from the image, which is unique to each of the clade variants.

Abstract: A multi-compartment oven provides removable shelves receiving separated streams of heated air providing heating for different oven cavities above and below the shelves. The shelves communicate with an operator automatically closing ducts providing air to the shelves when the shelves are removed.

Abstract: A multi-compartment oven provides removable shelves receiving separated streams of heated air providing heating for different oven cavities above and below the shelves. The shelves communicate with an operator automatically closing ducts providing air to the shelves when the shelves are removed.